mirror of
https://github.com/yarrick/iodine.git
synced 2024-11-29 04:55:07 +00:00
54 lines
2.2 KiB
C
54 lines
2.2 KiB
C
/*
|
|
* Copyright (c) 2006-2014 Erik Ekman <yarrick@kryo.se>,
|
|
* 2006-2009 Bjorn Andersson <flex@kryo.se>
|
|
*
|
|
* Permission to use, copy, modify, and/or distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
|
|
#ifndef _ENCODING_H_
|
|
#define _ENCODING_H_
|
|
|
|
#include <stdint.h>
|
|
|
|
/* All-0, all-1, 01010101, 10101010: each 4 times to make sure the pattern
|
|
spreads across multiple encoded chars -> 16 bytes total.
|
|
Followed by 32 bytes from my /dev/random; should be enough.
|
|
*/
|
|
#define DOWNCODECCHECK1 "\000\000\000\000\377\377\377\377\125\125\125\125\252\252\252\252\201\143\310\322\307\174\262\027\137\117\316\311\111\055\122\041\141\251\161\040\045\263\006\163\346\330\104\060\171\120\127\277"
|
|
#define DOWNCODECCHECK1_LEN 48
|
|
|
|
#define DNS_MAXLABEL 63
|
|
|
|
struct encoder {
|
|
char name[8];
|
|
size_t (*encode) (uint8_t *, size_t *, const uint8_t *, size_t);
|
|
size_t (*decode) (uint8_t *, size_t *, const uint8_t *, size_t);
|
|
int (*places_dots) (void);
|
|
int (*eats_dots) (void);
|
|
size_t (*blocksize_raw)(void);
|
|
size_t (*blocksize_encoded)(void);
|
|
size_t (*get_encoded_length)(size_t);
|
|
size_t (*get_raw_length)(size_t);
|
|
};
|
|
|
|
size_t get_raw_length_from_dns(size_t enc_bytes, struct encoder *enc, const char *topdomain);
|
|
size_t get_encoded_dns_length(size_t raw_bytes, struct encoder *enc, const char *topdomain);
|
|
|
|
size_t build_hostname(uint8_t *, size_t, const uint8_t *, const size_t, const char *, struct encoder *, size_t, size_t);
|
|
size_t unpack_data(uint8_t *, size_t, uint8_t *, size_t, struct encoder *);
|
|
size_t inline_dotify(uint8_t *, size_t);
|
|
size_t inline_undotify(uint8_t *, size_t);
|
|
|
|
|
|
#endif /* _ENCODING_H_ */
|